NEW DATES ON LATE PLEISTOCENE DACITIC TEPHRA FROM THE MOUNT-EDGECUMBEVOLCANIC FIELD, SOUTHEASTERN ALASKA

Authors
BEGET JE MOTYKA RJ
Citation
Je. Beget et Rj. Motyka, NEW DATES ON LATE PLEISTOCENE DACITIC TEPHRA FROM THE MOUNT-EDGECUMBEVOLCANIC FIELD, SOUTHEASTERN ALASKA, Quaternary research, 49(1), 1998, pp. 123-125
Citations number
16
Categorie Soggetti
Geosciences, Interdisciplinary
Journal title
Quaternary research → ACNP
ISSN journal
00335894
Volume
49
Issue
1
Year of publication
1998
Pages
123 - 125
Database
ISI
SICI code
0033-5894(1998)49:1<123:NDOLPD>2.0.ZU;2-Q
Abstract
New radiocarbon dates on charcoal incorporated in proximal airfall dep osits indicate the largest late Pleistocene eruption from the Mt. Edge cumbe volcanic field in Southeast Alaska occurred ca. 11,250 +/- 50 C- 14 yr B.P. The more precise dating of the principal Edgecumbe tephra l ayer greatly improves its utility as a tephrochronologic marker horizo n in southeastern Alaska. (C) 1998 University of Washington.